From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
The Cylons are the adversaries of the humans who inhabit the Twelve Colonies. Their destruction of the Colonies forms the central plotline of the Battlestar Galactica sagas.
- See Cylons (RDM) for more about the robotic and humanoid Cylons in the Re-imagined Series.
- See Cylons (TOS) for more on the reptilian and robotic Cylons of the Cylon Empire in the Original Series.
- See Cylons (SDS) for more on the Cylons of the failed DeSanto/Singer continuation of Battlestar Galactica.